toone,什么是one to one function? f(x)=x^2+1 是 one to one f

Answer 1

一元方程，只有一个未知数x

Answer 2

一楼答对了。给分吧。

Answer 3

one-to-one

adj.一应的; 一对一的;

英][wʌn tə wʌn][美][ˈwʌntəˈwʌn]

Can we get her in for a one-to-one?.

我把她请来一对一吗? 本回答被提问者和网友采纳

Answer 4

ONE-TO-ONE AND MANY-TO-ONE FUNCTIONS

One-to-one functions satisfy both the vertical line test and the horizontal line test.

This means that: 2

2

If the function f (x)

no vertical line can meet the graph more than once

no horizontal line can meet the graph more than once.

is one-to-one, it will have an inverse function which we denote f ¡1 (x).

A one-to-one function is any function where:

2 for each x there is only one value of y and2 for each y there is only one value of x.

Functions that are not one-to-one are called many-to-one. While these functions must satisfy the

vertical line test’ they do not satisfy the ‘horizontal line test’. At least one y-value has more than one

corresponding x-value.

If a function f(x) is many-to-one, it does not have an inverse function.

引用ib级highlevel pg82 本回答被网友采纳

Answer 5

one to one new

一对一新

Answer 6

改成我这没任何问

function z=zyx(x,y)

if x<20

z=('极高');

elseif x>=20&&x<=50&&y>=14&&y<=16

z=('高');

elseif x>=20&&x<=50&&(y<=14||y>=16)

z=('低');

elseif x>=50&&x<=100&&y>=14&&y<=16

z=('');

elseif x>=50&&x<=100&&(y<=14||y>=16)

z=('低');

else

z=('极低');

end

的如下：

>> result=zyx(20,15)

result =

高

Answer 7

onto 是漫射 台版翻译叫映成函数

映成函数(onto function)：设f：A→B，如果f(A)=B，则f是映成函数。换言之，B理的每一分子都出现作A的像，那f是映成函数。

Answer 8

feval

Evaluate function

Syntax

[y1, y2, ...] = feval(fhandle, x1, ..., xn)

[y1, y2, ...] = feval(function, x1, ..., xn)

Description

[y1, y2, ...] = feval(fhandle, x1, ..., xn) evaluates the function handle, fhandle, using arguments x1 through xn. If the function handle is bound to more than one built-in or M-file, (that is, it represents a set of overloaded functions), then the data type of the arguments x1 through xn determines which function is dispatched to.

Note It is not necessary to use feval to call a function by means of a function handle. This is explained in Calling a Function Using Its Handle in the MATLAB? Programming Fundamentals documentation.

[y1, y2, ...] = feval(function, x1, ..., xn). If function is a quoted string containing the name of a function (usually defined by an M-file), then feval(function, x1, ..., xn) evaluates that function at the given arguments. The function parameter must be a simple function name; it cannot contain path information.

Remarks

The following two statements are equivalent.

[V,D] = eig(A)

[V,D] = feval(@eig, A)

Examples

The following example passes a function handle, fhandle, in a call to fminbnd. The fhandle argument is a handle to the humps function.

fhandle = @humps;

x = fminbnd(fhandle, 0.3, 1);

The fminbnd function uses feval to evaluate the function handle that was passed in.

function [xf, fval, exitflag, output] = ...

fminbnd(funfcn, ax, bx, options, varargin)

.

.

.

fx = feval(funfcn, x, varargin{:});